package book;

public class BookList {
   private Book[] books = new Book[10];
   private int usedSize = 0;//有效数据个数。

   public BookList(){
       this.books[0] = new Book("三国演义","罗贯中",10,"小说");
       this.books[1] = new Book("西游记","吴承恩",20,"小说");
       this.books[2] = new Book("红楼梦","曹雪芹",30,"小说");

       this.usedSize = 3;
   }

    public int getUsedSize() {
        return usedSize;
    }

    public void setUsedSize(int usedSize) {
        this.usedSize = usedSize;
    }

    public Book getBook(int pos){
       return books[pos];
    }

    public void setBook(int pos,Book book){
        books[pos] = book;
    }

    public Book[] getBooks(){
       return books;
    }
}
